.. _add_a_class_of_service: Add a Class of Service ---------------------- 1. As a customer administrator or higher, and choose **Subscriber Management > Class of Service**. 2. To add new CoS instance, click **Add**. If necessary, this will automatically direct the user to select a customer-hierarchy-level, if not already on it. 3. From the **CUCM** drop-down, choose the desired |Unified CM|. 4. Enter the Class of Service name in the **CoS Name** field. 5. From the **Device CSS** and **Line CSS** drop-downs, choose the desired CSS types to be associated to this CoS item. The value can also be a macro that evaluates to a valid CSS type which already exists on the selected |Unified CM|. Blank values are also allowed. .. |VOSS Automate| replace:: VOSS Automate .. |Unified CM| replace:: Unified CM